Window-sash lock.



J, DRYSDALB.

WINDOW SASH' LOCK. urmouzon funn Lul.A 1a, 191s.

Patented May 6,1913.

JOHN BRYSDALE, NEW YORK, N. Y.

WINDCW-SASH LOCK.

weaver.

To all whom it may concern.'

Be it. known that. I, JOHN DnsDALn, a citizen of the United` States, andresiding at New York, in the county of New York and State of New York,have invented certain new and useful Improvements in W'indow- 'SashLocks, of which the following iS a slrilled in the art to specification,such as will enable those which it appertains to malte and use the same.

Ilhis invention relates to device-s for lock-v ing the sashes of awindow together in a closed position, and the object thereofis toprovide an .improved device of thisclass which is simple inconstruction, eiicient in operation and which may also be used forthefpnrpose of holding the sashes in an open or adjusted position forventilationv purposes, and which when so used will prevent the sashesfrom rattling.

The invention is fully disclosed -in the following specification, ofwhich the accompanying dra-wing forms a part, in which the .separateparts of my improvement are designated by suitable reference charactersin each of the'views, and in which :f-

Figure l is a perspective view of the cen-n tral part of one sideport-ion ofa' window .showingfthe bottom part of the top sash and the'top part of t-he bottom sash and showing my improved sash lock; F 1g. 2a transverse sectional view through the sash lock i and that part ofthetop and bottom sashes with which it is connected; Fig. 3 a view showingthe operation of the sash lock 1n holding the sashes in' an open oradjusted position, the parts of the sashes being shown parts (l and e,the first of which is secured' in section and parts of the upper sashand the lock being broken away; and, Fig. l a sectional side view of ascrew-threaded bolf which forms a part othe sash lock.

In the drawing forming part of this speci- "ication, I have shown at aone side portion of a Window frame, at Z1 a bottom corner portion of theupper sash and at c a top corner portion of the lower. sash. 4

My improved sash lock consists of two to the upper sash and the last tothelovver sash. The part e comprises a base plate e2 having a cent-ralraised transverse port-ion e,

the top of which is provided with a transverse sleeve e4 through whichis passed a .threaded bolt. f provided' at yits outer end with a thumbAand finger head f2 and in-v wardly thereof withl a collar f3, and the.in-

Spedcation of Letters Patent.

ner end of said bolt is Patented May 6, 1913.

Applieation alsa January 18,-1913. serial No. 742,820.

provided with a pro- ]ecting'plug g which is countersunk and -securedtherein, and which is. composed oi" rubber, or suitable fibrousmaterial, and which forms a projecting nose piece g2, the operation ofscribed.

'In practice, the part e is secured on the top bar c2 of the bottom sasho adjacent to the right hand side of the'window frame,

and the part-(Z is secured toa .mortise in' the corresponding sideportion b2 of the top sash Z1, and said part Z consists of a .platehavinga central and inwardly dirested sleeve d2 which is threadedinteriorly and adapted to receive the inner end of the bolt. f asclearly shown. In the construction shown-in Fig. 3, the inner endportion f4 of the bolt is not threaded nor is the sleeve d2 of the plated'. The operation will be readilyu'nderstood from the foregoingdescription when taken in connection with the accompanying drawlng andthe following statement. Whenever it is desired to lock the sashestogether and lin a'closed position as shown in Figs. l and 2.,*thne boltf is turned to the right u'n. til the inner end thereof enters thesleeve d2, as shownin F ig. 2. This operation securely bin-ds the sashestogether and prevents the moveltlent` of either vertically and alsoprevents t-heir rattling.

If'it isdesigned to opien the .sashes as shown in Fig. 3 for'ventilation or other pur- -.poses, the bottom sash must be'raised, orthe top sash lowered, or both of said sashes may be open after which thescrew f is manipulated so as to' force the nose piece l 2'aga-inst theside of the top sash as shown in Fig. 3. This will hold the sashes inthe open positio-n and will also prevent their rattling, but it isunderstood that in this posit-ion of the parte, thesashes are notabsolutely locked against vertical move-ment..

lV-ith the inner end portion of the bolt f not threaded and the sleeved2 of the part d also not .threa.(.l as shown .in Fig. 3, myimpro-vement wil still operate asa sash lock solas tov prevent .thevertical movement et' the sashes but the-sasheswill not be drawntogetl'ier as they Wili'whe'n said parts are threa ded as-sho-wn inFig.. 2.

Although, I have shown my improved sash lock as applied at one side ofthe window only, it will .be understood that it may be applied at bothsides of the window, if

which will be hereafter, de-

soV

1o parts one of which is adapted to be secured' to the top fof -thebottom sash adjacent to one side thereof andthe other tothe facev of thecorresponding side of the Atop sash,4 the first named part beingprovided AWitha, 15 'raised transverse interiorly threaded'sleeve anda.- screw-threaded bolt passed there- Loser/47 through end tiejla'stnamedfpart with an. in-

teriorly, threaded sleeve adapted to -receive the corresponding-end of.the-boit, said end. of the bolt being also p vided with a cush- 20ioned nose pieceadapted to bear on the side of the top sash `When the-Sashes or eitherl of them is in an open position.

In testimony thatI clm the foregoing as my invention I have signed myname iii-25v presence of the' subscribing WitnessesA this 16th day of Jan'liary' .1913..v

JOHN DRYSDALE..

Witnesses:

C; MULR'EANY, H. E. lT HoisnsoN.,

